Finding the Fourth Proportional to 2,439.36, 3,364.32 and 1,776.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.36 : 3,364.32 = 1,776.96 : x
2. Step 2: Convert to fraction form
   2,439.36/3,364.32 = 1,776.96/x
3. Step 3: Cross multiply
   2,439.36x = 3,364.32 × 1,776.96
4. Step 4: Simplify right side
   2,439.36x = 5,978,262.07
5. Step 5: Solve for x
   x = 5,978,262.07/2,439.36
6. Step 6: Final answer
   x = 2,450.75